Vaporizing-carbureter for oil-engines.



J. G. A. KITCHEN L I. H. STOREY.

VAPORIZING GARBURETER FORQIL ENGINES.

APPLICATION FILED AML-24. 1914.

1,131,934, Patented Mar.16,1915.

THE MORRIS PETERS C0..PHOTQLITHO..WASHING1UN. n C.

UNTED STATES PA'lElS-TI OFFICE.-

J'OHN GEORGE AULSEBROOK KITCHEN AND ISAAC HENRY STOREY, OF LANCASTER, ENGLAND.

VAPORIZING-CARBURETER FOR OIL-EN GINES.

Specification of Letters Patent.

Patented Mal. 16, 1915.

Application led April 24, 1914. Serial No. 834,181.

T0 all whom it may concern:

Be it known that we, J oHN GEORGE AULsn- BROOK KITCHEN and ISAAC HENRY STOREY, subjects of the King of Great Britain and Ireland, and residents of Lancaster, in the county of Lancaster, England, have invented new and useful Improvements in Vaporizing-Carbureters for Oil-Engines, of which the following is a specification.

This invention relates to carbureters for internal combustion engines using vaporized paraflin oil or other vaporized hydrocarbons of similar specific gravity and consists in improvements in or connected with said carbureters and the vaporizers forming part thereof.

According to this invention the vaporizer formed of a coiled tube and the burner for heating it is located in a funnel wholly open at the top and long enough to conduct the products of combustion well out of a motor boat or above a road vehicle. The vaporizer is fed preferably with oil under pressure by a force pump and supplies vapor to the air induction pipe of the engine and to a burner under the vaporizer, both supplies being regulated in the usual way by means of needle valves. 0n the part of the funnel surrounding the vaporizer a jacket is arranged having air inlet holes at its upper end and a pipe connected to the induction pipe of the engine at its lower end, so that the air is drawn through the jacket and heated thereby. In the outlet pipe of the jacket a throttle valve is arranged between the jacket and the vapor inlet, and this throttle valve is so connected to the needle valve regulating Vthe supply of vapor to the engine, as to be more or less opened as the needle valve is more or less opened, and thus maintain the desired proportions of oil vapor and heated air in the carbureted air supplied to the engine for all variations ofthe oil vapor supply.

On the accompanying drawing Figure 1 shows the improved carbureter in elevation, with the funnel and jacket in section. Fig.

2 the needle valve controlling the vapor supply to the engine in section, and F ig. 3 a plan sectioned on line X X Fig. 1, with the vaporizing coil removed.

The vaporizer consists of coil 1 preferably somewhat conical in shape with the smaller diameter at the bottom as shown. The oil is forced in suitable quantities by a pump through a pipe connected to the bottom end 2 of the coil which passes through the wall of the funnel 3, while the vapor generated passes from the top of the coil through the down pipe 4 to the pipe 5, which supplies vapor to the burner 6 at one end, and to the valve 7 at the other end. The burner is con trolled by a needle valve actuated by means of the spindle 8 passing through a pipe to the valve casing 6 of the burner, and the spindle is fitted with a lever 9 moving along a sector 10 so as to obtain a rapid and minute regulation of the vapor supply to the burner.

To start the vaporizer, a little oil is forced into the coil 1, and alcohol or petrol may be poured into the tray under the burner 6, the bottom of' the tray being covered with asbestos wick. The alcohol or petrol is then lighted and the valve 6 opened a little, so that the from it and is lighted by the flame of the alcohol or petrol. Beneath the coil 1 a spreader 1l.V is att-ached to it, causing the fiame to pass mostly along the outside of the coil and spread through it as well. The part of the funnel 3 surrounding the coil above the oil inlet branch 2 is jacketed, the jacket 12 having air inlet holes 12au around its upper end, and at its lower end an outlet 13 through a seat 13il for the iiange of an elbow pipe 11 which is bolted to the seating and to which the pipe 15 communicating with the suction pipe of the engine is connected. From the chamber 16 of the needle valve 7 a bent pipe 17 leads into the pipe 15 near to its lower end, and conducts the oil vapor passing through the valve into the pipe 15. Above the inlet of the vapor into the pipe 15 a throttle valve 18 is arranged in the pipe 15 on a spindle 19 passing to the outside of pipe l5, where a slotted lever 20 is fixed on it. On the spindle 21 of the needle valve provided with a hand wheel 22, a bush 23 is fixed and provided with a screw thread on its outside, which is threaded through the donwnward extension 24 of the slide 25. The slide is guided in a bracket 26 screwed upon the outside of the valve casing 7 and secured by a lock nut 27. The other end of the slide 25 is connected by a link 29 to a stud 28, which is adjustable in the slot of the lever 20. When the hand wheel 22 is turned to open the needle valve, the bush 23 is moved outward with the spindle and also turned, thereby imparting vapor generated in the coil issues an additional movement to the slide, which is transferred to the throttle valve, the amount of the movement imparted to the latter being variable by altering the position of the stud in the slot of the lever 20. By this arrangement the amount of heated air supplied to the induction pipe 15 is regulated and increased with an increased supply of vapor to it.

Any other kind of throttle valve may be used, and the means for opening and closing it along with the needle valve herein described may be replaced by others having the same effect.

The exhaust from the engine may be turned into the funnel 3 above the vaporizer, increasing the draft of the vaporizing flame and carrying the smoke and exhaust out of the top of the funnel, which may be made of any desired length to carry both well out of a motor boat or above the top of a. road vehicle.

Te claim:--

l. In a carbureter for internal combustion engines using heavy hydrocarbons the combination of a vertical coiled vaporizing tube having an inlet tube at the bottom and outlet tube at the top; a valved controlled burner underneath said coiled tube supplied from the vaporizer coil through said outlet tube, a funnel surrounding said coiled tube outlet pipe and burner, a jacket having an open top disposed on the outside of said funnel, air inlets at the upper part of said jacket and an outlet pipe at its lower end communicating with the suction pipe of the engine, and a hand controlled valve supplied with vapor from the said coiled tube and delivering it into said outlet pipe.

2. 2in a carbureter for internal combustion engines using heavy hydrocarbons, the combination of a coiled vaporizing tube surrounded by'a jacketed funnel, air inlets at Copies of this patent may be obtained for the top of the jacket and an outlet pipe at its bottom, a burner under the coiled tube, a vapor valve supplied with vapor from the said coiled tube, a pipe passing from the outlet of the valve into the outlet pipe from the jacket, an air supply regulating valve in said outlet pipe between the jacket and the pipe from the vapor valve, and means operated by the vapor valve spindle and adapted to open and close said air regulating valve more or less simultaneous with the opening and closing of the vapor valve.

3. ln a carbureter for internal combustion engines usingheavy hydrocarbons, the combinationv of a vertical coiled vaporizing tube having an inlet tube at the bottom and an outlet tube at the top leading downward, one branch of said tube leading to the valve of a vapor burner underneath said coil and another branch to an outside valve which has a finely threaded screw spindle regulat ing the supply of vapor to a mixing tube, a funnel surrounding said coiled tube and burner, an air jacket surrounding the funnel and coiled tube, air inlets at the top of said jacket and an outlet at its bottom connected by a pipe to said mixing tube, an air supply regulating valve in said pipe, having a spindle passing to the outside of the pipe, a screw of coarse thread fixed on the thread ed valve spindle, a nut on said screw having an extension guided on the casing of the vapor valve, a lever on the spindle of the regulating valve and a link connecting said lever to the extension of the nut. ,n

ln testimony whereof we have hereto signed our names in the presence of two witnesses.

JOHN GERGE AULSEBROOK KlTCHEN. ISAAC HENRY STOREY. Nitnessesz JOHN GEORGE "WRIGHT, JAMES HARRISON SHEPHERD.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. i 

